Heavy metal partitioning from electronic scrap during thermal End-of-Life treatment

Scharnhorst, Wolfram; Ludwig, Christian; Wochele, J.; Jolliet, Olivier

doi:10.1016/j.scitotenv.2006.11.023

Cited by 27 publications

(16 citation statements)

References 24 publications

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“…Thus far, limited knowledge exists regarding the extent to which management of WEEE via traditional waste management systems, such as landfi lling and incineration, has caused adverse impacts on the environment. [19][20][21][22] In response to growing concern, many parts of the world are trying to seek environmentally sound and economically feasible models for WEEE management. Many countries have shown great interest in establishing recycling processes to reduce the quantity of WEEE to be disposed of and to recover valuable resources.…”

Section: Introductionmentioning

confidence: 99%

Waste electrical and electronic equipment (WEEE) management in Korea: generation, collection, and recycling systems

Jang

2010

J Mater Cycles Waste Manag

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In Korea, generation of waste electrical and electronic equipment (WEEE), or electronic waste (e-waste), has rapidly increased in recent years. The management of WEEE has become a major issue of concern for solid waste communities due to the volumes of waste being generated and the potential environmental impacts associated with the toxic chemicals found in most electronic devices. Special attention must be paid when dealing with WEEE because of toxic materials that it contains (e.g., heavy metals, polybrominated diphenyl ethers, phthalates, and polyvinyl chloride). If managed improperly, the disposal of WEEE can adversely affect the environment and human health. Environmental regulatory agencies; electronic equipment manufacturers, retailers, and recyclers; environmental nongovernmental organizations; and many others are much interested in updated statistics with regard to how much WEEE is generated, stored, recycled, and disposed of. In Korea, an extended producer responsibility policy was introduced in 2003 not only to reduce the amount of electronic products requiring disposal, but also to promote resource recovery from WEEE; the policy currently applies to a total of ten electrical and electronic product categories. This article presents an overview of the current recycling practices and management of electrical and electronic waste in Korea. Specifi cally, the generation rates, recycling systems and processes, and recent regulations of WEEE are discussed. We estimated that 1 263 000 refrigerators, 701 000 washing machines, 1 181 000 televisions, and 109 000 airconditioning units were retired and handled by the WEEE management system in 2006. More than 40% of the products were collected and recycled by producers. Four major producers' recycling centers and other WEEE recycling facilities are currently in operation, and these process a large faction of WEEE for the recovery of valuable materials. Much attention should still be paid to pollution prevention and resource conservation with respect to WEEE. Several suggestions are made in order to deal with electronic waste management problems effectively and to prevent potential impacts.

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Section: Introductionmentioning

confidence: 99%

Waste electrical and electronic equipment (WEEE) management in Korea: generation, collection, and recycling systems

Jang

2010

J Mater Cycles Waste Manag

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“…At present the recovery of metals from such waste is generally accomplished by two strategies: by oxidative thermal treatment followed by metallurgical or chemical processes or by electrostatic separation of shredded boards (Xiang et al 2007;Scharnhorst et al 2007;Veit et al 2005). Neither techniques represent the optimum one as the first one deserves a great amount of energy and non-combustible pollutant slag and fumes are produced, while the second procedure is not able to separate small amounts of metals from non metallic supports, thus it is absolutely not suitable for the recovery of precious metals in the form they are found in electronic devices.…”

Section: Introductionmentioning

confidence: 99%

A new environmentally friendly process for the recovery of gold from electronic waste

et al. 2009

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A new method for the recovery of precious metals, in particular gold, from electronic waste is proposed. This work focused on the research of an easily renewable etching agent, in order to make an environmentally friendly process possible. Two well known hydrometallurgical etching agents, FeCl 3 and CuCl 2 , were evaluated in terms of efficiency and kinetics, testing solutions with different concentration of etchant and hydrochloric acid. The recovery of spent etching solutions was evaluated: promising results were found in the case of CuCl 2 , which can be completely restored by oxidation of the cuprous chloride formed during the etching using atmospheric oxygen.

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“…Synchrotron-based X-ray absorption spectroscopy allowed gaining insights in the fate of Zn (Struis et al 2004) and Pb (Struis et al 2009) by studying MSWI FA at room temperature, as a function of treatment temperature and atmosphere (inert gas or air). With time, the questions regarding heavy metal partitioning expanded also to other wastes, such as electronic scrap (Scharnhorst et al 2007). Very recent studies concern the evaluation of health risks related to waste incineration of polymer nanocomposites (Roes et al (2012) and its possible persistence in a MSWI plant (Walser et al 2012).…”

Section: Thermal Treatmentmentioning

confidence: 99%

Fly Ash Pollutants, Treatment and Recycling

Gianoncelli

Zacco

Struis

et al. 2013

Environmental Chemistry for a Sustainable World

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Heavy metal partitioning from electronic scrap during thermal End-of-Life treatment

Cited by 27 publications

References 24 publications

Waste electrical and electronic equipment (WEEE) management in Korea: generation, collection, and recycling systems

Waste electrical and electronic equipment (WEEE) management in Korea: generation, collection, and recycling systems

A new environmentally friendly process for the recovery of gold from electronic waste

Fly Ash Pollutants, Treatment and Recycling

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